/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineExternalUIInterface.h
struct FShowSendMessageParams
FOnlineMessageP...
DataPayload
FText
DisplayDetails
TMap<FString, ...
DisplayDetails_Loc
Map of language to text so the recipient's platform OS can display the localized string
FText
DisplayMessage
TArray< uint8 >
DisplayThumbnail
FText
DisplayTitle
TMap<FString, ...
DisplayTitle_Loc
Map of language to text so the recipient's platform OS can display the localized string
int32
MaxRecipients